… | |
… | |
215 | int events; |
215 | int events; |
216 | } ANPENDING; |
216 | } ANPENDING; |
217 | |
217 | |
218 | #if EV_MULTIPLICITY |
218 | #if EV_MULTIPLICITY |
219 | |
219 | |
220 | struct ev_loop |
220 | struct ev_loop |
221 | { |
221 | { |
222 | # define VAR(name,decl) decl; |
222 | #define VAR(name,decl) decl; |
223 | # include "ev_vars.h" |
223 | #include "ev_vars.h" |
224 | }; |
|
|
225 | # undef VAR |
224 | #undef VAR |
|
|
225 | }; |
226 | # include "ev_wrap.h" |
226 | #include "ev_wrap.h" |
|
|
227 | |
|
|
228 | struct ev_loop default_loop_struct; |
|
|
229 | static struct ev_loop *default_loop; |
227 | |
230 | |
228 | #else |
231 | #else |
229 | |
232 | |
230 | # define VAR(name,decl) static decl; |
233 | #define VAR(name,decl) static decl; |
231 | # include "ev_vars.h" |
234 | #include "ev_vars.h" |
232 | # undef VAR |
235 | #undef VAR |
|
|
236 | |
|
|
237 | static int default_loop; |
233 | |
238 | |
234 | #endif |
239 | #endif |
235 | |
240 | |
236 | /*****************************************************************************/ |
241 | /*****************************************************************************/ |
237 | |
242 | |
… | |
… | |
316 | |
321 | |
317 | ++base; |
322 | ++base; |
318 | } |
323 | } |
319 | } |
324 | } |
320 | |
325 | |
321 | static void |
326 | void |
322 | event (EV_P_ W w, int events) |
327 | ev_feed_event (EV_P_ void *w, int revents) |
323 | { |
328 | { |
|
|
329 | W w_ = (W)w; |
|
|
330 | |
324 | if (w->pending) |
331 | if (w_->pending) |
325 | { |
332 | { |
326 | pendings [ABSPRI (w)][w->pending - 1].events |= events; |
333 | pendings [ABSPRI (w_)][w_->pending - 1].events |= revents; |
327 | return; |
334 | return; |
328 | } |
335 | } |
329 | |
336 | |
330 | w->pending = ++pendingcnt [ABSPRI (w)]; |
337 | w_->pending = ++pendingcnt [ABSPRI (w_)]; |
331 | array_needsize (ANPENDING, pendings [ABSPRI (w)], pendingmax [ABSPRI (w)], pendingcnt [ABSPRI (w)], (void)); |
338 | array_needsize (ANPENDING, pendings [ABSPRI (w_)], pendingmax [ABSPRI (w_)], pendingcnt [ABSPRI (w_)], (void)); |
332 | pendings [ABSPRI (w)][w->pending - 1].w = w; |
339 | pendings [ABSPRI (w_)][w_->pending - 1].w = w_; |
333 | pendings [ABSPRI (w)][w->pending - 1].events = events; |
340 | pendings [ABSPRI (w_)][w_->pending - 1].events = revents; |
334 | } |
341 | } |
335 | |
342 | |
336 | static void |
343 | static void |
337 | queue_events (EV_P_ W *events, int eventcnt, int type) |
344 | queue_events (EV_P_ W *events, int eventcnt, int type) |
338 | { |
345 | { |
339 | int i; |
346 | int i; |
340 | |
347 | |
341 | for (i = 0; i < eventcnt; ++i) |
348 | for (i = 0; i < eventcnt; ++i) |
342 | event (EV_A_ events [i], type); |
349 | ev_feed_event (EV_A_ events [i], type); |
343 | } |
350 | } |
344 | |
351 | |
345 | static void |
352 | inline void |
346 | fd_event (EV_P_ int fd, int events) |
353 | fd_event (EV_P_ int fd, int revents) |
347 | { |
354 | { |
348 | ANFD *anfd = anfds + fd; |
355 | ANFD *anfd = anfds + fd; |
349 | struct ev_io *w; |
356 | struct ev_io *w; |
350 | |
357 | |
351 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
358 | for (w = (struct ev_io *)anfd->head; w; w = (struct ev_io *)((WL)w)->next) |
352 | { |
359 | { |
353 | int ev = w->events & events; |
360 | int ev = w->events & revents; |
354 | |
361 | |
355 | if (ev) |
362 | if (ev) |
356 | event (EV_A_ (W)w, ev); |
363 | ev_feed_event (EV_A_ (W)w, ev); |
357 | } |
364 | } |
|
|
365 | } |
|
|
366 | |
|
|
367 | void |
|
|
368 | ev_feed_fd_event (EV_P_ int fd, int revents) |
|
|
369 | { |
|
|
370 | fd_event (EV_A_ fd, revents); |
358 | } |
371 | } |
359 | |
372 | |
360 | /*****************************************************************************/ |
373 | /*****************************************************************************/ |
361 | |
374 | |
362 | static void |
375 | static void |
… | |
… | |
403 | struct ev_io *w; |
416 | struct ev_io *w; |
404 | |
417 | |
405 | while ((w = (struct ev_io *)anfds [fd].head)) |
418 | while ((w = (struct ev_io *)anfds [fd].head)) |
406 | { |
419 | { |
407 | ev_io_stop (EV_A_ w); |
420 | ev_io_stop (EV_A_ w); |
408 | event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
421 | ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); |
409 | } |
422 | } |
410 | } |
423 | } |
411 | |
424 | |
412 | static int |
425 | static int |
413 | fd_valid (int fd) |
426 | fd_valid (int fd) |
… | |
… | |
541 | |
554 | |
542 | if (!gotsig) |
555 | if (!gotsig) |
543 | { |
556 | { |
544 | int old_errno = errno; |
557 | int old_errno = errno; |
545 | gotsig = 1; |
558 | gotsig = 1; |
|
|
559 | #ifdef WIN32 |
|
|
560 | send (sigpipe [1], &signum, 1, MSG_DONTWAIT); |
|
|
561 | #else |
546 | write (sigpipe [1], &signum, 1); |
562 | write (sigpipe [1], &signum, 1); |
|
|
563 | #endif |
547 | errno = old_errno; |
564 | errno = old_errno; |
548 | } |
565 | } |
549 | } |
566 | } |
550 | |
567 | |
|
|
568 | void |
|
|
569 | ev_feed_signal_event (EV_P_ int signum) |
|
|
570 | { |
|
|
571 | WL w; |
|
|
572 | |
|
|
573 | #if EV_MULTIPLICITY |
|
|
574 | assert (("feeding signal events is only supported in the default loop", loop == default_loop)); |
|
|
575 | #endif |
|
|
576 | |
|
|
577 | --signum; |
|
|
578 | |
|
|
579 | if (signum < 0 || signum >= signalmax) |
|
|
580 | return; |
|
|
581 | |
|
|
582 | signals [signum].gotsig = 0; |
|
|
583 | |
|
|
584 | for (w = signals [signum].head; w; w = w->next) |
|
|
585 | ev_feed_event (EV_A_ (W)w, EV_SIGNAL); |
|
|
586 | } |
|
|
587 | |
551 | static void |
588 | static void |
552 | sigcb (EV_P_ struct ev_io *iow, int revents) |
589 | sigcb (EV_P_ struct ev_io *iow, int revents) |
553 | { |
590 | { |
554 | WL w; |
|
|
555 | int signum; |
591 | int signum; |
556 | |
592 | |
|
|
593 | #ifdef WIN32 |
|
|
594 | recv (sigpipe [0], &revents, 1, MSG_DONTWAIT); |
|
|
595 | #else |
557 | read (sigpipe [0], &revents, 1); |
596 | read (sigpipe [0], &revents, 1); |
|
|
597 | #endif |
558 | gotsig = 0; |
598 | gotsig = 0; |
559 | |
599 | |
560 | for (signum = signalmax; signum--; ) |
600 | for (signum = signalmax; signum--; ) |
561 | if (signals [signum].gotsig) |
601 | if (signals [signum].gotsig) |
562 | { |
602 | ev_feed_signal_event (EV_A_ signum + 1); |
563 | signals [signum].gotsig = 0; |
|
|
564 | |
|
|
565 | for (w = signals [signum].head; w; w = w->next) |
|
|
566 | event (EV_A_ (W)w, EV_SIGNAL); |
|
|
567 | } |
|
|
568 | } |
603 | } |
569 | |
604 | |
570 | static void |
605 | static void |
571 | siginit (EV_P) |
606 | siginit (EV_P) |
572 | { |
607 | { |
… | |
… | |
605 | if (w->pid == pid || !w->pid) |
640 | if (w->pid == pid || !w->pid) |
606 | { |
641 | { |
607 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
642 | ev_priority (w) = ev_priority (sw); /* need to do it *now* */ |
608 | w->rpid = pid; |
643 | w->rpid = pid; |
609 | w->rstatus = status; |
644 | w->rstatus = status; |
610 | event (EV_A_ (W)w, EV_CHILD); |
645 | ev_feed_event (EV_A_ (W)w, EV_CHILD); |
611 | } |
646 | } |
612 | } |
647 | } |
613 | |
648 | |
614 | static void |
649 | static void |
615 | childcb (EV_P_ struct ev_signal *sw, int revents) |
650 | childcb (EV_P_ struct ev_signal *sw, int revents) |
… | |
… | |
617 | int pid, status; |
652 | int pid, status; |
618 | |
653 | |
619 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
654 | if (0 < (pid = waitpid (-1, &status, WNOHANG | WUNTRACED | WCONTINUED))) |
620 | { |
655 | { |
621 | /* make sure we are called again until all childs have been reaped */ |
656 | /* make sure we are called again until all childs have been reaped */ |
622 | event (EV_A_ (W)sw, EV_SIGNAL); |
657 | ev_feed_event (EV_A_ (W)sw, EV_SIGNAL); |
623 | |
658 | |
624 | child_reap (EV_A_ sw, pid, pid, status); |
659 | child_reap (EV_A_ sw, pid, pid, status); |
625 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
660 | child_reap (EV_A_ sw, 0, pid, status); /* this might trigger a watcher twice, but event catches that */ |
626 | } |
661 | } |
627 | } |
662 | } |
… | |
… | |
812 | } |
847 | } |
813 | |
848 | |
814 | #endif |
849 | #endif |
815 | |
850 | |
816 | #if EV_MULTIPLICITY |
851 | #if EV_MULTIPLICITY |
817 | struct ev_loop default_loop_struct; |
|
|
818 | static struct ev_loop *default_loop; |
|
|
819 | |
|
|
820 | struct ev_loop * |
852 | struct ev_loop * |
821 | #else |
853 | #else |
822 | static int default_loop; |
|
|
823 | |
|
|
824 | int |
854 | int |
825 | #endif |
855 | #endif |
826 | ev_default_loop (int methods) |
856 | ev_default_loop (int methods) |
827 | { |
857 | { |
828 | if (sigpipe [0] == sigpipe [1]) |
858 | if (sigpipe [0] == sigpipe [1]) |
… | |
… | |
888 | if (method) |
918 | if (method) |
889 | postfork = 1; |
919 | postfork = 1; |
890 | } |
920 | } |
891 | |
921 | |
892 | /*****************************************************************************/ |
922 | /*****************************************************************************/ |
|
|
923 | |
|
|
924 | static int |
|
|
925 | any_pending (EV_P) |
|
|
926 | { |
|
|
927 | int pri; |
|
|
928 | |
|
|
929 | for (pri = NUMPRI; pri--; ) |
|
|
930 | if (pendingcnt [pri]) |
|
|
931 | return 1; |
|
|
932 | |
|
|
933 | return 0; |
|
|
934 | } |
893 | |
935 | |
894 | static void |
936 | static void |
895 | call_pending (EV_P) |
937 | call_pending (EV_P) |
896 | { |
938 | { |
897 | int pri; |
939 | int pri; |
… | |
… | |
926 | downheap ((WT *)timers, timercnt, 0); |
968 | downheap ((WT *)timers, timercnt, 0); |
927 | } |
969 | } |
928 | else |
970 | else |
929 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
971 | ev_timer_stop (EV_A_ w); /* nonrepeating: stop timer */ |
930 | |
972 | |
931 | event (EV_A_ (W)w, EV_TIMEOUT); |
973 | ev_feed_event (EV_A_ (W)w, EV_TIMEOUT); |
932 | } |
974 | } |
933 | } |
975 | } |
934 | |
976 | |
935 | static void |
977 | static void |
936 | periodics_reify (EV_P) |
978 | periodics_reify (EV_P) |
… | |
… | |
940 | struct ev_periodic *w = periodics [0]; |
982 | struct ev_periodic *w = periodics [0]; |
941 | |
983 | |
942 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
984 | assert (("inactive timer on periodic heap detected", ev_is_active (w))); |
943 | |
985 | |
944 | /* first reschedule or stop timer */ |
986 | /* first reschedule or stop timer */ |
|
|
987 | if (w->reschedule_cb) |
|
|
988 | { |
|
|
989 | ev_tstamp at = ((WT)w)->at = w->reschedule_cb (w, rt_now + 0.0001); |
|
|
990 | |
|
|
991 | assert (("ev_periodic reschedule callback returned time in the past", ((WT)w)->at > rt_now)); |
|
|
992 | downheap ((WT *)periodics, periodiccnt, 0); |
|
|
993 | } |
945 | if (w->interval) |
994 | else if (w->interval) |
946 | { |
995 | { |
947 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
996 | ((WT)w)->at += floor ((rt_now - ((WT)w)->at) / w->interval + 1.) * w->interval; |
948 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
997 | assert (("ev_periodic timeout in the past detected while processing timers, negative interval?", ((WT)w)->at > rt_now)); |
949 | downheap ((WT *)periodics, periodiccnt, 0); |
998 | downheap ((WT *)periodics, periodiccnt, 0); |
950 | } |
999 | } |
951 | else |
1000 | else |
952 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
1001 | ev_periodic_stop (EV_A_ w); /* nonrepeating: stop timer */ |
953 | |
1002 | |
954 | event (EV_A_ (W)w, EV_PERIODIC); |
1003 | ev_feed_event (EV_A_ (W)w, EV_PERIODIC); |
955 | } |
1004 | } |
956 | } |
1005 | } |
957 | |
1006 | |
958 | static void |
1007 | static void |
959 | periodics_reschedule (EV_P) |
1008 | periodics_reschedule (EV_P) |
… | |
… | |
963 | /* adjust periodics after time jump */ |
1012 | /* adjust periodics after time jump */ |
964 | for (i = 0; i < periodiccnt; ++i) |
1013 | for (i = 0; i < periodiccnt; ++i) |
965 | { |
1014 | { |
966 | struct ev_periodic *w = periodics [i]; |
1015 | struct ev_periodic *w = periodics [i]; |
967 | |
1016 | |
|
|
1017 | if (w->reschedule_cb) |
|
|
1018 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
968 | if (w->interval) |
1019 | else if (w->interval) |
969 | { |
|
|
970 | ev_tstamp diff = ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1020 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
971 | |
|
|
972 | if (fabs (diff) >= 1e-4) |
|
|
973 | { |
|
|
974 | ev_periodic_stop (EV_A_ w); |
|
|
975 | ev_periodic_start (EV_A_ w); |
|
|
976 | |
|
|
977 | i = 0; /* restart loop, inefficient, but time jumps should be rare */ |
|
|
978 | } |
|
|
979 | } |
|
|
980 | } |
1021 | } |
|
|
1022 | |
|
|
1023 | /* now rebuild the heap */ |
|
|
1024 | for (i = periodiccnt >> 1; i--; ) |
|
|
1025 | downheap ((WT *)periodics, periodiccnt, i); |
981 | } |
1026 | } |
982 | |
1027 | |
983 | inline int |
1028 | inline int |
984 | time_update_monotonic (EV_P) |
1029 | time_update_monotonic (EV_P) |
985 | { |
1030 | { |
… | |
… | |
1081 | /* update fd-related kernel structures */ |
1126 | /* update fd-related kernel structures */ |
1082 | fd_reify (EV_A); |
1127 | fd_reify (EV_A); |
1083 | |
1128 | |
1084 | /* calculate blocking time */ |
1129 | /* calculate blocking time */ |
1085 | |
1130 | |
1086 | /* we only need this for !monotonic clockor timers, but as we basically |
1131 | /* we only need this for !monotonic clock or timers, but as we basically |
1087 | always have timers, we just calculate it always */ |
1132 | always have timers, we just calculate it always */ |
1088 | #if EV_USE_MONOTONIC |
1133 | #if EV_USE_MONOTONIC |
1089 | if (expect_true (have_monotonic)) |
1134 | if (expect_true (have_monotonic)) |
1090 | time_update_monotonic (EV_A); |
1135 | time_update_monotonic (EV_A); |
1091 | else |
1136 | else |
… | |
… | |
1124 | /* queue pending timers and reschedule them */ |
1169 | /* queue pending timers and reschedule them */ |
1125 | timers_reify (EV_A); /* relative timers called last */ |
1170 | timers_reify (EV_A); /* relative timers called last */ |
1126 | periodics_reify (EV_A); /* absolute timers called first */ |
1171 | periodics_reify (EV_A); /* absolute timers called first */ |
1127 | |
1172 | |
1128 | /* queue idle watchers unless io or timers are pending */ |
1173 | /* queue idle watchers unless io or timers are pending */ |
1129 | if (!pendingcnt) |
1174 | if (idlecnt && !any_pending (EV_A)) |
1130 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1175 | queue_events (EV_A_ (W *)idles, idlecnt, EV_IDLE); |
1131 | |
1176 | |
1132 | /* queue check watchers, to be executed first */ |
1177 | /* queue check watchers, to be executed first */ |
1133 | if (checkcnt) |
1178 | if (checkcnt) |
1134 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
1179 | queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); |
… | |
… | |
1289 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1334 | ev_periodic_start (EV_P_ struct ev_periodic *w) |
1290 | { |
1335 | { |
1291 | if (ev_is_active (w)) |
1336 | if (ev_is_active (w)) |
1292 | return; |
1337 | return; |
1293 | |
1338 | |
|
|
1339 | if (w->reschedule_cb) |
|
|
1340 | ((WT)w)->at = w->reschedule_cb (w, rt_now); |
|
|
1341 | else if (w->interval) |
|
|
1342 | { |
1294 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1343 | assert (("ev_periodic_start called with negative interval value", w->interval >= 0.)); |
1295 | |
|
|
1296 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1344 | /* this formula differs from the one in periodic_reify because we do not always round up */ |
1297 | if (w->interval) |
|
|
1298 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
1345 | ((WT)w)->at += ceil ((rt_now - ((WT)w)->at) / w->interval) * w->interval; |
|
|
1346 | } |
1299 | |
1347 | |
1300 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1348 | ev_start (EV_A_ (W)w, ++periodiccnt); |
1301 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1349 | array_needsize (struct ev_periodic *, periodics, periodicmax, periodiccnt, (void)); |
1302 | periodics [periodiccnt - 1] = w; |
1350 | periodics [periodiccnt - 1] = w; |
1303 | upheap ((WT *)periodics, periodiccnt - 1); |
1351 | upheap ((WT *)periodics, periodiccnt - 1); |
… | |
… | |
1319 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1367 | periodics [((W)w)->active - 1] = periodics [periodiccnt]; |
1320 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1368 | downheap ((WT *)periodics, periodiccnt, ((W)w)->active - 1); |
1321 | } |
1369 | } |
1322 | |
1370 | |
1323 | ev_stop (EV_A_ (W)w); |
1371 | ev_stop (EV_A_ (W)w); |
|
|
1372 | } |
|
|
1373 | |
|
|
1374 | void |
|
|
1375 | ev_periodic_again (EV_P_ struct ev_periodic *w) |
|
|
1376 | { |
|
|
1377 | ev_periodic_stop (EV_A_ w); |
|
|
1378 | ev_periodic_start (EV_A_ w); |
1324 | } |
1379 | } |
1325 | |
1380 | |
1326 | void |
1381 | void |
1327 | ev_idle_start (EV_P_ struct ev_idle *w) |
1382 | ev_idle_start (EV_P_ struct ev_idle *w) |
1328 | { |
1383 | { |